MXV 4.5

Technical sheet

1. Engine: 77° V twin four stroke. Liquid cooled. Single overhead cam with rocker operated exhaust valves, chain timing drive, 4 valve heads, titanium valves.
2. Fuel: Lead-free petrol.
3. Bore x Stroke: 76 x 49.5 mm
4. Total displacement: 449 cm3
5. Compression ratio: 13 :1
6. Fuel system: Integrated engine management system controlling ignition and fuel injection. Throttle body: 38 mm. Hard and soft mappings selectable from the handlebars.
7. Ignition: Electronic digital (batteryless).
8. Starting: Kick-start.
9. Exhaust: Conforming to FIM standards for 2009.
10. Generator: 220 W
11. Lubrification: Dry sump. Separate gearbox lubrication.
12. Gear box: 4 speed. Motocross gear ratios: 1st 14/29 2nd 15/26 3rd 17/25 4th 19/24
13. Clutch: Multi-plate in oil bath, cable operated.
14. Primary drive: Spur gears. Transmission ratio: 23/65.
15. Final drive: Chain. Transmission ratio: 14/49.
16. Frame: Cr-Mo steel perimeter frame with aluminium alloy vertical members. Headstock rake angle 26.2°. Lightweight rear frame section.
17. Front suspension: 50 mm Marzocchi upside down fork with adjustments for compression and rebound.
18. Rear suspension: Pro-Link with Sachs monoshock, adjustable in compression and rebound.
19. Brakes: Front: 270 mm lightweight stainless steel floating disc with Nissin floating caliper. Rear: 240 mm lightweight stainless steel disc with Nissin floating caliper.
20. Wheels: Black anodised aluminium alloy. Front: 1.60 x 21”. Rear: 2.15 x 19".
21. Tyres: Front: Dunlop 80/100-21 51M. Rear: Dunlop 110/90-19 62M.
22. Dimensions: Overall length: 2,190 mm Overall width: 815 mm Ground clearance: 1,285 mm Seat height: 960 mm Wheelbase: 1,499 mm
23. Fuel tank capacity: Capacity 7.4 litres.

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